Sticky please!
To my knowledge this is the largest compilation of it’s kind as far as filters for this application. Obviously all of these fit the TRX as well as the Chargers, Challengers and even Hemi Rams (without EPS).
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This is not meant to be an argument for what’s best (although I’ve included a poll so you can cast your vote for what you use or will use). I’ve simply gathered all the specs I could find, cut them open and wrote some objective thoughts on what I saw. I bought all of these with my own money, I am not involved in this industry and have no dog in this fight. When shopping I tried to find the best deals on each one but prices will vary.
First spec chart (also available as PDF at bottom of post):
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I am limited in attachments so I will post one photo per filter in this main post and stick to the filters one would be most likely to use.
Mopar MO-899:View attachment 39034
Factory equipped. Manufactured by Purolator in USA. It’s the only one here with the bypass on the threaded end. Which is theoretically a slight advantage as when it goes into bypass you aren’t potentially washing the dirty side of the filter into the oil. Pleat spacing is fairly wide and not all that even. The metal internal end-caps aren’t glued extremely tight, it pulled apart very easily compared to the rest. This is not an issue since the spring will hold it together in use, just wanted to make a note of that. No way to verify, but the filter media appears identical to that of the PureOne by any measure. A decent filter but pretty much what I expected, nothing special.
Mopar MO-041:View attachment 39035
This is (or was) the OEM+ “upgrade” filter designed for the Viper. Currently not readily available, this review is for an “old stock” version with a new one due in the fall. Made by Wix in Poland. Uses same baseplate, bypass, and coil spring design as the two Wix filters but the overall build quality is better than those two and the can is a bit thicker. Filter pleats are tight and evenly spaced. Filter media looks to be a synthetic blend like most of the others. Nice filter, unfortunately devoid of any specs. SRT engineer was quoted as saying it’s more efficient than the MO-899 and has a higher bypass pressure, but unable to confirm.
Mobil M1-210A:
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These are now made by Mann & Hummel and share some parts with the Purolators (who are also under that umbrella). Same base plate, ADBV, and dome-end bypass design. Speaking of, I had to call them for the bypass PSI. They said it’s 22 PSI, which would make it the highest here. Good filter surface area and well made. Efficiency is middle of the pack, sold as an extended drain interval filter.
Purolator PureOne PL24651:
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The PureOne is a good midrange filter. Very efficient and decent build quality. Much like the MO-899, the metal end caps weren’t very tight on there.
Purolator Boss PLB24651:
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This one impressed me. The thing is a tank. Extremely heavy case and tightly spaced media with no flaws. Synthetic media is backed up by a plastic mesh and is super tough and hard to tear. Geared more toward extended drain intervals, the efficiency isn’t at the top of the pack but still very good. I bought it on sale locally for $9.99 and that seems like a a very good deal for what you get. Very nice filter.
Wix 51372XP:
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Overall build quality is good with wire backed synthetic media, BUT it is geared solely toward long drain intervals. As such, the efficiency rating is the worst by far. In the independent test chart it did not do much better than rated. In fact, it was off the scale bad. Unfortunately there are much better options with media that provide good flow, good capacity AND better filtration.
Wix 51372:
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Pleats are fairly evenly spaced, but put together a bit sloppily with messy glue on the filter media along the seam. It’s a perfectly fine filter though. I would use it over the XP based on the fact that it actually filters.
Fram XG2:
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This is the most efficient filter on the market, but it’s a Fram so many dismiss it out of hand. Pleat count isn’t as high, and spacing isn’t quite as pretty as some others, but the synthetic media is double layered, wire-backed and flows very well. These filters also have a very high capacity. Well built.
K&N HP-2010:View attachment 39044
Pretty heavy and well made by Champion Labs (along with the Amsoil and Royal Purple). This one has a synthetic blend media whereas the other two are full synthetic. Unfortunately K&N doesn’t publish efficiency specs, and I feel there are better options for less money. Unless you just gotta have the removal nut!
AMSOIL EAO11:
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This one surprised me. It’s easily the most expensive filter here, but the only one made in Mexico. Kind of disappointing. I like the media in this filter, it performs very well. Unfortunately the price has recently been raised to $17.90 (or $22.90 if you aren’t a preferred member) and that’s just too much money for what you get. Compared to the US-built Champion Labs filters like the Royal Purple, the base plate is thinner and lighter with fewer holes. Otherwise construction closely resembles the Royal Purple. Filter media is slightly different though which explains the slightly higher efficiency on this Amsoil.
Royal Purple 20-820:View attachment 39046
Really nice filter. Wire backed synthetic media, heavy baseplate and good build quality, USA made. And not obscenely priced either. Compared to the very similar Amsoil, you don’t give up much and it’s a downright bargain.
In the second post I will share the remaining entry level filters I cut open, as well as some independent flow and efficiency data I found online for a different application…
